Comment 50 for bug 52670

Thinking about it, I realize that this might "change the meaning" of what the x-www-browser alternative specifies. Its behaviour currently you could describe as, "the preferred browser," whereas with my proposed change it would be, "the default (overridable) preferred browser." Because this isn't really a security issue (if an admin wants to enforce use of a specific browser he needs to properly make sure it's the only one users can use through access privileges, not change x-www-browser) and different users on the same box may prefer different browsers, I think my solution makes more sense. But maybe I haven't thought of something? :)